Purely optical wavelength converter for optical communications network, convert optical data signal from one carrier wavelength to another, has active and passive optic fibers on horizontal plane in optical coupling zone

摘要

A purely optical wavelength converter, to convert an optical data signal from one carrier wavelength (delta 1) to another carrier wavelength (delta 2), has an integrated amplification stabilizing laser to generate the second wavelength. Two separate monomodal active (LWLa) and passive (LWLp) optic fibers are arranged on a horizontal plane. A purely optical wavelength converter, to convert an optical data signal from one carrier wavelength (delta 1) to another carrier wavelength (delta 2), has an integrated amplification stabilizing laser to generate the second wavelength. Two separate monomodal active (LWLa) and passive (LWLp) optic fibers are arranged on a horizontal plane. The passive optic fiber has two ports (A,B), and is coupled to the active fiber in an optical coupling zone (OKB). The active optic fiber is a laser (LAS) with one port (C) with a total mirror array (TOV) and a second port (D) with a partial mirror array (TEV). Port A or B is the entry for the data signal with the first carrier wavelength and the coupling zone length gives an amplified output of the data signal with the first carrier wavelength. Port D is the output port for the amplified and inverted data signal with the second carrier wavelength. The active optic fiber has at least one wavelength selective grid section (DBR) to stabilize the second carrier wavelength.